EP1529574B1 - Nutherstellungsvorrichtung und Verfahren - Google Patents

Nutherstellungsvorrichtung und Verfahren Download PDF

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Publication number
EP1529574B1
EP1529574B1 EP04026334A EP04026334A EP1529574B1 EP 1529574 B1 EP1529574 B1 EP 1529574B1 EP 04026334 A EP04026334 A EP 04026334A EP 04026334 A EP04026334 A EP 04026334A EP 1529574 B1 EP1529574 B1 EP 1529574B1
Authority
EP
European Patent Office
Prior art keywords
cylinder
profiling
axial direction
peripheral surface
inner peripheral
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
EP04026334A
Other languages
English (en)
French (fr)
Other versions
EP1529574A1 (de
Inventor
Naomasa Kayaba Industry Co. Ltd. Tsuda
Kazuhiro Yanagisawa Seiki Mfg. Co. Ltd. Kondo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yanagisawa Seiki Manufacturing Co Ltd
KYB Corp
Original Assignee
Kayaba Industry Co Ltd
Yanagisawa Seiki Manufacturing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kayaba Industry Co Ltd, Yanagisawa Seiki Manufacturing Co Ltd filed Critical Kayaba Industry Co Ltd
Publication of EP1529574A1 publication Critical patent/EP1529574A1/de
Application granted granted Critical
Publication of EP1529574B1 publication Critical patent/EP1529574B1/de
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D17/00—Forming single grooves in sheet metal or tubular or hollow articles
    • B21D17/04—Forming single grooves in sheet metal or tubular or hollow articles by rolling

Definitions

  • the present invention relates to a groove processing apparatus and a groove processing method of forming a groove extending in an axial direction of a cylinder on an inner peripheral surface thereof as per the pre-characterising portions of independent claims 1 and 5.
  • Such an apparatus and method is known from JP-A-2001 009525 .
  • a linear groove extending in an axial direction of the cylinder is formed as a bypassing flow passage or a pressure relief groove disposed on an inner peripheral surface thereof.
  • Japanese Patent Publication No. 2001 - 9525A has disclosed a groove processing apparatus for forming a linear groove on an inner peripheral surface of a cylinder.
  • FIGS. 1-3 show a groove processing apparatus in a preferred embodiment of the present invention.
  • the groove processing apparatus is provided with a guide member 1, a sliding member 2, and a profiling member 3, and further a holder member 4 disposed in the sliding member 2, as well as a profiling roller 5 and a processing roller 6 disposed in the holder member 4.
  • the guide member 1 is, for example, located and inserted into a cylinder C as a component of a gas spring to be stationary therein for groove processing.
  • the guide member 1 has a flat guide face 1a extending in an axial direction of the cylinder C to slidably guide the sliding member 2.
  • the cross section of the guide member 1 is formed in U-shape and a guide side wall 1c is formed in each side of the guide face 1a. And a bottom face 1 b of the guide member 1 is formed in a curved face having a curvature that corresponds to the inner peripheral surface of the cylinder C and closely contacts the inner peripheral surface of the cylinder C.
  • the guide member 1 for example, is inserted from an opening end (not shown) in the right side of FIG. 1 and FIG. 2 into the cylinder C and is fixed thereto. In this case an insertion end of the guide member 1 bumps into an inside step portion C2 of a bottom end C 1 of the cylinder C to prevent further movement of the guide member 1 in the insertion direction (refer to FIG. 2).
  • the sliding member 2 is placed on the guide face 1a of the guide member 1 and slides along the guide face 1a in the axial direction of the cylinder C by a driving force applied to an operation portion in a base side (not shown).
  • the sliding member 2 is formed in a band sheet shape and has both ends contacting each guide side wall 1c, 1c of the guide member 1 to restrict movement of the sliding member 2 in the direction perpendicular to the sliding direction thereof.
  • a bracket 21 is disposed in a tip portion 2a of the sliding member 2 and one end of the holder member 4 is rotatably supported by the bracket 21 through a horizontal shaft 41.
  • a profiling roller 5 is rotatably supported by a horizontal shaft 42 in a rotating end extending in the backside of the holder member 4.
  • a lower face of the profiling roller 5 extends further than a lower face of the holder member 4 to directly roll on and contact an upper face 2b of the sliding member 2.
  • a processing roller 6 is rotatably supported at the holder member 4 by a horizontal shaft 43 positioned in an intermediate position between both shafts 41 and 42. A part of the processing roller 6 is in an upper position than an upper face of the holder member 4 and a tapered end 6a is formed in a central portion of an outer peripheral surface of the processing roller 6. This tapered end 6a performs groove processing on the inner peripheral surface of the cylinder as described later.
  • the profiling member 3 extending in the axial direction of the cylinder C the same as the sliding member 2 is placed on the upper face 2b of the sliding member 2, and a tip portion 3a of the profiling member 3 includes an oblique face.
  • the profiling member 3 is so constructed that the profiling member 3 moves together with the sliding member 2 in the axial direction of the cylinder C or independently thereof as needed.
  • the oblique face of the tip portion 3a gradually gets lower in height toward the left side in FIG. 2, and the profiling roller 5 in a rotating end of the holder member 4 runs on the tip portion 3a of the profiling member 3 to incline the holder member 4 at any angle depending on a point where the profiling roller 5 is on the oblique face of the tip portion 3a and thereby to push the tapered end 6a of the processing roller 6 into the inner peripheral surface of the cylinder C.
  • the profiling roller 5 is formed in a cylindrical shape and contacts the oblique face of the tip portion 3a with the entire width of the profiling roller 5 to avoid locally excessive contact with the oblique face and thereby to prevent damage or deformation of the oblique face.
  • a part of the holder member 4 is placed between the guide side walls 1c, 1c of the guide member 1, which enables restriction of right side and left side movements of the holder member 4.
  • the processing roller 6 held by the holder member 4 is guided not to move in the direction perpendicular to the axial direction of the cylinder C.
  • a slip member such as Teflon (registered trademark) is located on either one of the upper face 2b of the sliding member 2 and the lower face 3b of the profiling member 3 sliding with the upper face 2b or a bearing member such as a steel ball or a roller is arranged between the lower face 3b of the profiling member 3 and the upper face 2b of the sliding member 2 (not shown).
  • An operation portion in the backside of the profiling member 3 in the right side in FIG. 1 and 2 is positioned outside of the opening end of the cylinder C (not shown). Driving force exerting on the operation portion causes the profiling member 3 to slide on the upper face 2b of the sliding member 2.
  • Groove processing by the groove processing apparatus of the preferred embodiment according to the present invention will be performed as follows.
  • the sliding member 2 is inserted to the leading edge of the guide member 1 and thereafter, the profiling member 3 is inserted from the state shown in FIG. 1 to the state shown in FIG. 2 to slide the tip portion 3a down the lower face of the holder member 4. Then, as shown in FIG. 2 and 3, the profiling member 5 runs on the oblique face of the tip portion 3a of the profiling member 3 to incline the holder member 4. As a result, the processing roller 6 lifts up, so that the tapered end 6a cuts into the inner peripheral surface of the cylinder C.
  • the profiling roller 5 comes down on the oblique face of the tip portion 3a, so that the tapered end 6a of the processing roller 6 lowers. Therefore, as the sliding member 2 moves in the right direction in FIG. 2 and at the same time the profiling member 3 moves in the same direction with the sliding member 2 at a slightly faster speed than the sliding member 2, the depth of the groove C3 formed on the inner peripheral surface of the cylinder C gradually gets shallower.
  • the processing roller 6 rapidly lowers down and then, the tapered end 6a leaves from the inner peripheral surface of the cylinder C, and at that point the processing of the groove C3 ends.
  • the groove C3 can be formed on the inner peripheral surface of the cylinder C so as to have any depth and any length based upon an initial position of the sliding member 2 to the guide member 1, an initial position of the profiling member 3 to the sliding member 2, a relative movement speed between the sliding member 2 and the profiling member 3, and the like.
  • the cylinder C and the guide member 1 are arranged to be fixedly held, and the sliding member 2 and the profiling member 3 are arranged to be moved to perform groove processing, and however, in place of the above arrangement, while the sliding member 2 and the profiling member 3 are arranged to be stationary, the cylinder C and the guide member 1 are arranged to be moved, to enable groove processing.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Machine Tool Copy Controls (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Turning (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)

Claims (6)

  1. Nutbearbeitungsvorrichtung zum Ausbilden einer Nut in einer axialen Richtung eines Zylinders an einer Innenumfangsfläche desselben, die umfasst:
    ein Führungselement (1), das in einem stationären Zustand im Inneren des Zylinders angeordnet ist, wobei das Führungselement eine plane Führungsfläche (1a) parallel zu der axialen Richtung des Zylinders enthält;
    ein Gleitelement (2), das sich verschiebbar an der planen Führungsfläche (1a) des Führungselementes befindet und in der axialen Richtung des Zylinders bewegt werden kann;
    gekennzeichnet durch ein Profilierelement (3), das sich verschiebbar an dem Gleitelement (2) befindet und unabhängig von dem Gleitelement in der axialen Richtung bewegt werden kann, wobei das Profilierelement eine schräge Fläche an einem vorderen Abschnitt (3a) desselben aufweist; und
    ein Halterelement (4), das an einem Ende desselben drehbar mit einem vorderen Abschnitt des Gleitelementes (2) verbunden ist, wobei das Halterelement umfasst:
    eine Profilierwalze (5), die an einem sich drehenden Ende an der Rückseite des Halterelementes (4) angeordnet ist, um auf der schrägen Fläche des Profilierelementes (3) zu laufen; und
    eine Bearbeitungswalze (6), die an einer Mittelposition des Halterelementes (4) der Innenumfangsfläche des Zylinders gegenüberliegend angeordnet ist, wobei:
    die Profilierwalze (5) auf der schrägen Fläche des Profilierelementes (3) läuft, um das Halterelement (4) zu neigen und so die Bearbeitungswalze (6) in die Innenumfangsfläche des Zylinders zu schieben, wo sich das Gleitelement (2) und das Profilierelement (3) in der axialen Richtung des Zylinders relativ zu dem Zylinder und dem Führungselement (1) bewegen, um eine Nut auszubilden, die in der axialen Richtung an der Innenumfangsfläche des Zylinders verläuft.
  2. Nutbearbeitungsvorrichtung nach Anspruch 1, wobei:
    die Bearbeitungswalze (6) einen sich verjüngenden Abschnitt umfasst, der durch Verjüngung einer Außenumfangsfläche gebildet wird.
  3. Nutbearbeitungsvorrichtung nach Anspruch 1, wobei:
    das Profilierelement (3) in einer zylindrischen Form ausgebildet ist, und
    das Profilierelement mit der schrägen Fläche über eine gesamte Breite des Profilierelementes in Kontakt kommt, wenn das Profilierelement auf der schrägen Fläche läuft.
  4. Nutbearbeitungsvorrichtung nach Anspruch 1, wobei:
    das Führungselement (1) Seitenwände (1 c) an beiden Seiten der Führungsfläche (1a) umfasst und die Seitenwände Bewegung des Halteelementes (4) in der Richtung senkrecht zu der axialen Richtung des Zylinders verhindern.
  5. Nutbearbeitungsverfahren zum Ausbilden einer Nut in einer axialen Richtung eines Zylinders an einer Innenumfangsfläche desselben, das die folgenden Schritte umfasst:
    Anordnen eines Führungselementes (1) in einem stationären Zustand im Inneren des Zylinders, wobei das Führungselement eine plane Führungsfläche (1a) parallel zu der axialen Richtung des Zylinders enthält;
    Positionieren eines Gleitelementes (2) verschiebbar an der planen Führungsfläche (1a) des Führungselementes und in der axialen Richtung des Zylinders beweglich;
    gekennzeichnet durch Positionieren eines Profilierelementes (3) verschiebbar an dem Gleitelement (2) und in der axialen Richtung des Zylinders unabhängig von dem Gleitelement beweglich, wobei das Profilierelement eine schräge Fläche an einem vorderen Abschnitt desselben aufweist; und
    Bereitstellen eines Halterelementes (4), das an einem Ende desselben drehbar mit einem vorderen Abschnitt des Gleitelementes (2) verbunden ist, wobei das Halterelement umfasst:
    eine Profilierwalze (5), die an einem sich drehenden Ende an der Rückseite des Halterelementes angeordnet ist, um auf der schrägen Fläche des Profilierelementes (3) zu laufen; und
    eine Bearbeitungswalze (6), die an einer Mittelposition des Halterelementes (4) der Innenumfangsfläche des Zylinders gegenüberliegend angeordnet ist, wobei:
    die Profilierwalze (5) auf der schrägen Fläche des Profilierelementes (3) läuft, um das Halterelement (4) zu neigen und so die Bearbeitungswalze in die Innenumfangsfläche des Zylinders zu schieben, wo sich das Gleitelement (2) und das Profilierelement (3) in der axialen Richtung des Zylinders relativ zu dem Zylinder und dem Führungselement (1) bewegen, um eine Nut auszubilden, die in der axialen Richtung an der Innenumfangsfläche des Zylinders verläuft.
  6. Nutbearbeitungsverfahren nach Anspruch 5, wobei:
    Herbeiführen eines Unterschiedes zwischen der Bewegungsgeschwindigkeit des Gleitelementes (2) und der des Profilierelementes (3) eine Änderung der Tiefe der an der Innenumfangsfläche des Zylinders ausgebildeten Nut bewirkt.
EP04026334A 2003-11-07 2004-11-05 Nutherstellungsvorrichtung und Verfahren Expired - Fee Related EP1529574B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2003377667A JP4210580B2 (ja) 2003-11-07 2003-11-07 溝加工装置および溝加工方法
JP2003377667 2003-11-07

Publications (2)

Publication Number Publication Date
EP1529574A1 EP1529574A1 (de) 2005-05-11
EP1529574B1 true EP1529574B1 (de) 2007-07-18

Family

ID=34431325

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04026334A Expired - Fee Related EP1529574B1 (de) 2003-11-07 2004-11-05 Nutherstellungsvorrichtung und Verfahren

Country Status (6)

Country Link
US (1) US7222509B2 (de)
EP (1) EP1529574B1 (de)
JP (1) JP4210580B2 (de)
KR (1) KR100628402B1 (de)
CN (1) CN1309497C (de)
DE (1) DE602004007596T2 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5833879B2 (ja) * 2011-10-07 2015-12-16 株式会社ショーワ 溝加工装置および溝加工方法
CN103143604B (zh) * 2013-02-28 2015-01-07 太原科技大学 一种管材内壁环状沟槽的滚压成型装置
CN103658278B (zh) * 2013-12-06 2015-09-30 乔登卫浴(江门)有限公司 一种用于拉伸面板的滚槽成型模具
CN108167333B (zh) * 2016-12-07 2023-12-08 汕头市东方科技有限公司 一种罐体槽型加工装置

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3332216C2 (de) 1983-09-07 1995-02-16 Fichtel & Sachs Ag Verwendung einer Prägevorrichtung zur Herstellung mindestens einer axial verlaufenden Innennut an einem rohrförmig ausgebildeten Zylinder für Schwingungsdämpfer
US4866966A (en) 1988-08-29 1989-09-19 Monroe Auto Equipment Company Method and apparatus for producing bypass grooves
GB2280628B (en) 1993-08-03 1996-10-23 Camloc Method and apparatus for forming a longitudinal groove in the wall of a passage
JP3942209B2 (ja) * 1996-02-20 2007-07-11 株式会社ショーワ ガスシリンダ装置のシリンダ溝加工装置及び加工方法
JP3807699B2 (ja) * 1997-10-24 2006-08-09 カヤバ工業株式会社 溝加工装置
GB2357821B (en) * 1998-08-21 2002-05-15 Avm Inc Method of manufacturing gas springs
JP3845775B2 (ja) 1999-06-30 2006-11-15 カヤバ工業株式会社 溝加工装置
DE10027364A1 (de) * 2000-06-02 2001-12-06 Bosch Gmbh Robert Verfahren und Vorrichtung zur Kantenbearbeitung in einem Kraftstoffhochdruckspeicher
JP2002346642A (ja) * 2001-05-18 2002-12-03 Showa Corp ガスシリンダ装置のシリンダ溝の加工装置及び方法。
DE10236281A1 (de) * 2002-08-08 2004-02-19 Ina-Schaeffler Kg Verfahren zum Herstellen einer Spindelmutter eines Kugelgewindetriebes

Also Published As

Publication number Publication date
EP1529574A1 (de) 2005-05-11
KR100628402B1 (ko) 2006-09-26
CN1623701A (zh) 2005-06-08
JP2005138145A (ja) 2005-06-02
US7222509B2 (en) 2007-05-29
DE602004007596D1 (de) 2007-08-30
US20070051150A1 (en) 2007-03-08
JP4210580B2 (ja) 2009-01-21
CN1309497C (zh) 2007-04-11
KR20050044263A (ko) 2005-05-12
DE602004007596T2 (de) 2007-11-22

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